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OwnedPreparedStatement

Struct OwnedPreparedStatement 

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pub struct OwnedPreparedStatement<V: SQLParam> {
    pub text_segments: Box<[CompactString]>,
    pub params: Box<[OwnedParam<V>]>,
    pub sql: CompactString,
}
Expand description

An owned version of PreparedStatement with no lifetime dependencies

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§text_segments: Box<[CompactString]>

Pre-rendered text segments

§params: Box<[OwnedParam<V>]>

Parameter placeholders (in order) - only placeholders, no values

§sql: CompactString

Fully rendered SQL with placeholders for this dialect

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impl<V: SQLParam> OwnedPreparedStatement<V>

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pub fn external_param_count(&self) -> usize

Returns the number of external parameter bindings expected. This counts params that need external binding (no pre-set value), deduplicating named params since one binding satisfies all uses.

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pub fn bind<'a, T: SQLParam + Into<V>>( &self, param_binds: impl IntoIterator<Item = ParamBind<'a, T>>, ) -> Result<(&str, impl Iterator<Item = V>)>

Bind parameters and return SQL with dialect-appropriate placeholders. Uses $1, $2, ... for PostgreSQL, ? for SQLite/MySQL.

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Returns an error if required parameters are missing or if a named placeholder cannot be resolved from the supplied bindings.

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pub fn sql(&self) -> &str

Returns the fully rendered SQL with placeholders.

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impl<V: Clone + SQLParam> Clone for OwnedPreparedStatement<V>

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fn clone(&self) -> OwnedPreparedStatement<V>

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<V: Debug + SQLParam> Debug for OwnedPreparedStatement<V>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<V: SQLParam> Display for OwnedPreparedStatement<V>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<V: SQLParam> From<OwnedPreparedStatement<V>> for PreparedStatement<'_, V>

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fn from(value: OwnedPreparedStatement<V>) -> Self

Converts to this type from the input type.
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impl<'a, V: SQLParam> From<PreparedStatement<'a, V>> for OwnedPreparedStatement<V>

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fn from(prepared: PreparedStatement<'a, V>) -> Self

Converts to this type from the input type.
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impl<'a, V: SQLParam> ToSQL<'a, V> for OwnedPreparedStatement<V>

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fn to_sql(&self) -> SQL<'a, V>

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fn into_sql(self) -> SQL<'a, V>
where Self: Sized,

Consume self and return SQL without cloning. Default delegates to to_sql() (which clones). Types that own their SQL (like SQL and SQLExpr) override this to avoid the clone.

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impl<T> AliasExt for T

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fn alias(self, name: &'static str) -> AliasedExpr<Self>

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<Mk> MarkerAggValidFor<()> for Mk

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impl<Scope> ScopeSatisfies<Nil, ()> for Scope

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impl<T> ToCompactString for T
where T: Display,

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> TypeEq<T> for T